net/mlx5e: Remove incorrect addition of action fwd flag

[ Upstream commit 475fb86a ]

A user is expected to explicit request a fwd or drop action.
It is not correct to implicit add a fwd action for the user,
when modify header action flag exists.

Signed-off-by: Roi Dayan <roid@nvidia.com>
Reviewed-by: Maor Dickman <maord@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Stable-dep-of: 0c101a23 ("net/mlx5e: Fix pedit endianness")
Signed-off-by: Sasha Levin <sashal@kernel.org>